Description: Each volume depicts a different heroine.<b>Volume 1</b> Main character of the story is Tachibana Tsubomi (立花つぼみ, a fifth grader dealing with issues such as her mother's pregnancy, her first period, and the strange feelings she has started to get when she has been around boys.<b>Volume 2</b> Main character of the story is Kusakabe Tsubomi (草壁つぼみ, a fifth grader, who encounters an alien wanting to do research of earth. It turns out he has picked Tsubomi to be his research subject.<b>Volume 3</b> Shiina Tsubomi (椎名 つぼみ<b>Volume 4</b> Katanashi Tsubomi (小鳥遊 つぼみ<b>Volume 5</b> Aizaki Tsubomi (相崎 つぼみ<b>Volume 6</b> Nike Tsubomi (仁家 つぼみ<b>Volume 7</b> Yagi Tsubomi (八木 つぼみ<b>Volume 8</b> Honda Tsubomi (本田 つぼみ<b>Note</b> Won the Shogakukan Manga Award for children's manga in 2009.